16155898956 has 96 divisors (see below), whose sum is σ = 44387179200. Its totient is φ = 5072739840.

The previous prime is 16155898951. The next prime is 16155898973. The reversal of 16155898956 is 65989855161.

16155898956 is a `hidden beast` number, since 1 + 615 + 5 + 8 + 9 + 8 + 9 + 5 + 6 = 666.

It is a super-2 number, since 2×16155898956² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16155898893 and 16155898902.

It is not an unprimeable number, because it can be changed into a prime (16155898951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65506 + ... + 191318.

It is an arithmetic number, because the mean of its divisors is an integer number (462366450).

Almost surely, 2^16155898956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16155898956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22193589600).

16155898956 is an abundant number, since it is smaller than the sum of its proper divisors (28231280244).

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

16155898956 is a wasteful number, since it uses less digits than its factorization.

16155898956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125896 (or 125888 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 63.

The spelling of 16155898956 in words is "sixteen billion, one hundred fifty-five million, eight hundred ninety-eight thousand, nine hundred fifty-six".