122553557516 has 24 divisors (see below), whose sum is σ = 231161016240. Its totient is φ = 56515499712.

The previous prime is 122553557513. The next prime is 122553557527. The reversal of 122553557516 is 615755355221.

It is a super-3 number, since 3×122553557516³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (122553557513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931031 + ... + 1054478.

It is an arithmetic number, because the mean of its divisors is an integer number (9631709010).

Almost surely, 2^122553557516 is an apocalyptic number.

It is an amenable number.

122553557516 is a deficient number, since it is larger than the sum of its proper divisors (108607458724).

122553557516 is a wasteful number, since it uses less digits than its factorization.

122553557516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986713 (or 1986711 counting only the distinct ones).

The product of its digits is 1575000, while the sum is 47.

The spelling of 122553557516 in words is "one hundred twenty-two billion, five hundred fifty-three million, five hundred fifty-seven thousand, five hundred sixteen".