149170643624 has 8 divisors (see below), whose sum is σ = 279694956810. Its totient is φ = 74585321808.

The previous prime is 149170643599. The next prime is 149170643627. The reversal of 149170643624 is 426346071941.

It can be written as a sum of positive squares in only one way, i.e., 149164343524 + 6300100 = 386218^2 + 2510^2 .

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

It is not an unprimeable number, because it can be changed into a prime (149170643627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9323165219 + ... + 9323165234.

Almost surely, 2^149170643624 is an apocalyptic number.

It is an amenable number.

149170643624 is a deficient number, since it is larger than the sum of its proper divisors (130524313186).

149170643624 is a wasteful number, since it uses less digits than its factorization.

149170643624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18646330459 (or 18646330455 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 149170643624 in words is "one hundred forty-nine billion, one hundred seventy million, six hundred forty-three thousand, six hundred twenty-four".