16156777896 has 48 divisors (see below), whose sum is σ = 50009076000. Its totient is φ = 4616222112.

The previous prime is 16156777867. The next prime is 16156777921. The reversal of 16156777896 is 69877765161.

16156777896 is a `hidden beast` number, since 1 + 61 + 567 + 7 + 7 + 8 + 9 + 6 = 666.

It is a super-2 number, since 2×16156777896² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16028046 + ... + 16029053.

It is an arithmetic number, because the mean of its divisors is an integer number (1041855750).

Almost surely, 2^16156777896 is an apocalyptic number.

It is an amenable number.

16156777896 is an abundant number, since it is smaller than the sum of its proper divisors (33852298104).

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

16156777896 is a wasteful number, since it uses less digits than its factorization.

16156777896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32057118 (or 32057111 counting only the distinct ones).

The product of its digits is 26671680, while the sum is 63.

The spelling of 16156777896 in words is "sixteen billion, one hundred fifty-six million, seven hundred seventy-seven thousand, eight hundred ninety-six".