16470621512 has 8 divisors (see below), whose sum is σ = 30882415350. Its totient is φ = 8235310752.

The previous prime is 16470621499. The next prime is 16470621527. The reversal of 16470621512 is 21512607461.

It can be written as a sum of positive squares in only one way, i.e., 14867900356 + 1602721156 = 121934^2 + 40034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×16470621512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1029413837 + ... + 1029413852.

Almost surely, 2^16470621512 is an apocalyptic number.

It is an amenable number.

16470621512 is a deficient number, since it is larger than the sum of its proper divisors (14411793838).

16470621512 is a wasteful number, since it uses less digits than its factorization.

16470621512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058827695 (or 2058827691 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 16470621512 in words is "sixteen billion, four hundred seventy million, six hundred twenty-one thousand, five hundred twelve".