61572222124 has 24 divisors (see below), whose sum is σ = 123196822560. Its totient is φ = 26376871296.

The previous prime is 61572222121. The next prime is 61572222133. The reversal of 61572222124 is 42122227516.

It is a super-2 number, since 2×61572222124² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61572222124.

It is not an unprimeable number, because it can be changed into a prime (61572222121) 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, 400489 + ... + 532480.

It is an arithmetic number, because the mean of its divisors is an integer number (5133200940).

Almost surely, 2^61572222124 is an apocalyptic number.

It is an amenable number.

61572222124 is an abundant number, since it is smaller than the sum of its proper divisors (61624600436).

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

61572222124 is a wasteful number, since it uses less digits than its factorization.

61572222124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935337 (or 935335 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The spelling of 61572222124 in words is "sixty-one billion, five hundred seventy-two million, two hundred twenty-two thousand, one hundred twenty-four".