1390266016650 has 576 divisors, whose sum is σ = 4660856328960. Its totient is φ = 303261235200.

The previous prime is 1390266016637. The next prime is 1390266016697. The reversal of 1390266016650 is 566106620931.

1390266016650 is a `hidden beast` number, since 1 + 39 + 0 + 2 + 6 + 601 + 6 + 6 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1390266016596 and 1390266016605.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 938733910 + ... + 938735390.

It is an arithmetic number, because the mean of its divisors is an integer number (8091764460).

Almost surely, 2^{1390266016650} is an apocalyptic number.

1390266016650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1390266016650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2330428164480).

1390266016650 is an abundant number, since it is smaller than the sum of its proper divisors (3270590312310).

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

1390266016650 is a wasteful number, since it uses less digits than its factorization.

1390266016650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2138 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 1390266016650 in words is "one trillion, three hundred ninety billion, two hundred sixty-six million, sixteen thousand, six hundred fifty".