16500145952 has 12 divisors (see below), whose sum is σ = 32484662406. Its totient is φ = 8250072960.

The previous prime is 16500145933. The next prime is 16500145993. The reversal of 16500145952 is 25954100561.

It can be written as a sum of positive squares in only one way, i.e., 16229740816 + 270405136 = 127396^2 + 16444^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257814749 + ... + 257814812.

Almost surely, 2^16500145952 is an apocalyptic number.

It is an amenable number.

16500145952 is a deficient number, since it is larger than the sum of its proper divisors (15984516454).

16500145952 is an equidigital number, since it uses as much as digits as its factorization.

16500145952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515629571 (or 515629563 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 16500145952 in words is "sixteen billion, five hundred million, one hundred forty-five thousand, nine hundred fifty-two".