122942660640 has 96 divisors (see below), whose sum is σ = 388667885760. Its totient is φ = 32666317824.

The previous prime is 122942660627. The next prime is 122942660653. The reversal of 122942660640 is 46066249221.

It is an interprime number because it is at equal distance from previous prime (122942660627) and next prime (122942660653).

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×122942660640² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122942660592 and 122942660601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329370 + ... + 595289.

It is an arithmetic number, because the mean of its divisors is an integer number (4048623810).

Almost surely, 2^122942660640 is an apocalyptic number.

122942660640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122942660640 is an abundant number, since it is smaller than the sum of its proper divisors (265725225120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122942660640 is a wasteful number, since it uses less digits than its factorization.

122942660640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924954 (or 924946 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 122942660640 in words is "one hundred twenty-two billion, nine hundred forty-two million, six hundred sixty thousand, six hundred forty".