154900996040 has 128 divisors (see below), whose sum is σ = 401871179520. Its totient is φ = 52636953600.

The previous prime is 154900996037. The next prime is 154900996043. The reversal of 154900996040 is 40699009451.

It is an interprime number because it is at equal distance from previous prime (154900996037) and next prime (154900996043).

It is not an unprimeable number, because it can be changed into a prime (154900996043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16028810 + ... + 16038470.

It is an arithmetic number, because the mean of its divisors is an integer number (3139618590).

Almost surely, 2^154900996040 is an apocalyptic number.

154900996040 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 154900996040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200935589760).

154900996040 is an abundant number, since it is smaller than the sum of its proper divisors (246970183480).

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

154900996040 is a wasteful number, since it uses less digits than its factorization.

154900996040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183 (or 10179 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 154900996040 in words is "one hundred fifty-four billion, nine hundred million, nine hundred ninety-six thousand, forty".