122673661504 has 21 divisors (see below), whose sum is σ = 243436107361. Its totient is φ = 61335429760.

The previous prime is 122673661477. The next prime is 122673661567. The reversal of 122673661504 is 405166376221.

The square root of 122673661504 is 350248.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 121555427904 + 1118233600 = 348648^2 + 33440^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2780094 + ... + 2823874.

Almost surely, 2^122673661504 is an apocalyptic number.

122673661504 is the 350248-th square number.

It is an amenable number.

122673661504 is a deficient number, since it is larger than the sum of its proper divisors (120762445857).

122673661504 is an frugal number, since it uses more digits than its factorization.

122673661504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87574 (or 43783 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 122673661504 in words is "one hundred twenty-two billion, six hundred seventy-three million, six hundred sixty-one thousand, five hundred four".