161366151952 has 20 divisors (see below), whose sum is σ = 314896182160. Its totient is φ = 80102621088.

The previous prime is 161366151937. The next prime is 161366151983. The reversal of 161366151952 is 259151663161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36276138 + ... + 36280585.

It is an arithmetic number, because the mean of its divisors is an integer number (15744809108).

Almost surely, 2^161366151952 is an apocalyptic number.

It is an amenable number.

161366151952 is a deficient number, since it is larger than the sum of its proper divisors (153530030208).

161366151952 is a wasteful number, since it uses less digits than its factorization.

161366151952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72556870 (or 72556864 counting only the distinct ones).

The product of its digits is 291600, while the sum is 46.

The spelling of 161366151952 in words is "one hundred sixty-one billion, three hundred sixty-six million, one hundred fifty-one thousand, nine hundred fifty-two".