16610471572 has 12 divisors (see below), whose sum is σ = 29616784596. Its totient is φ = 8148533120.

The previous prime is 16610471569. The next prime is 16610471587. The reversal of 16610471572 is 27517401661.

It can be written as a sum of positive squares in 2 ways, for example, as 14078771716 + 2531699856 = 118654^2 + 50316^2 .

It is a congruent number.

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, 39175429 + ... + 39175852.

It is an arithmetic number, because the mean of its divisors is an integer number (2468065383).

Almost surely, 2^16610471572 is an apocalyptic number.

It is an amenable number.

16610471572 is a deficient number, since it is larger than the sum of its proper divisors (13006313024).

16610471572 is a wasteful number, since it uses less digits than its factorization.

16610471572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78351338 (or 78351336 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 16610471572 in words is "sixteen billion, six hundred ten million, four hundred seventy-one thousand, five hundred seventy-two".