16990261924 has 24 divisors (see below), whose sum is σ = 31998061368. Its totient is φ = 7864343040.

The previous prime is 16990261913. The next prime is 16990261961. The reversal of 16990261924 is 42916209961.

It can be written as a sum of positive squares in 4 ways, for example, as 146894400 + 16843367524 = 12120^2 + 129782^2 .

It is a super-2 number, since 2×16990261924² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043859 + ... + 2052154.

It is an arithmetic number, because the mean of its divisors is an integer number (1333252557).

Almost surely, 2^16990261924 is an apocalyptic number.

It is an amenable number.

16990261924 is a deficient number, since it is larger than the sum of its proper divisors (15007799444).

16990261924 is a wasteful number, since it uses less digits than its factorization.

16990261924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096095 (or 4096093 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 16990261924 in words is "sixteen billion, nine hundred ninety million, two hundred sixty-one thousand, nine hundred twenty-four".