16556234074 has 8 divisors (see below), whose sum is σ = 26295195348. Its totient is φ = 7791168960.

The previous prime is 16556234069. The next prime is 16556234081. The reversal of 16556234074 is 47043265561.

It can be written as a sum of positive squares in 2 ways, for example, as 16514049049 + 42185025 = 128507^2 + 6495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16556234074.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243473997 + ... + 243474064.

Almost surely, 2^16556234074 is an apocalyptic number.

16556234074 is a deficient number, since it is larger than the sum of its proper divisors (9738961274).

16556234074 is a wasteful number, since it uses less digits than its factorization.

16556234074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486948080.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 16556234074 in words is "sixteen billion, five hundred fifty-six million, two hundred thirty-four thousand, seventy-four".