1499165915940 has 1152 divisors, whose sum is σ = 6380394209280. Its totient is φ = 275357491200.

The previous prime is 1499165915939. The next prime is 1499165915941. The reversal of 1499165915940 is 495195619941.

1499165915940 is a `hidden beast` number, since 1 + 499 + 1 + 6 + 5 + 91 + 59 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1499165915939) and next prime (1499165915941).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1499165915941) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 248326602 + ... + 248332638.

It is an arithmetic number, because the mean of its divisors is an integer number (5538536640).

Almost surely, 2^{1499165915940} is an apocalyptic number.

1499165915940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1499165915940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3190197104640).

1499165915940 is an abundant number, since it is smaller than the sum of its proper divisors (4881228293340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1499165915940 is a wasteful number, since it uses less digits than its factorization.

1499165915940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153 (or 6148 counting only the distinct ones).

The product of its (nonzero) digits is 15746400, while the sum is 63.

The spelling of 1499165915940 in words is "one trillion, four hundred ninety-nine billion, one hundred sixty-five million, nine hundred fifteen thousand, nine hundred forty".