612215542152 has 96 divisors (see below), whose sum is σ = 1663389819000. Its totient is φ = 203419717632.

The previous prime is 612215542151. The next prime is 612215542177. The reversal of 612215542152 is 251245512216.

612215542152 is a `hidden beast` number, since 6 + 1 + 221 + 5 + 5 + 421 + 5 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 571454354916 + 40761187236 = 755946^2 + 201894^2 .

It is a super-2 number, since 2×612215542152² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (612215542151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34507428 + ... + 34525164.

Almost surely, 2^612215542152 is an apocalyptic number.

It is an amenable number.

612215542152 is an abundant number, since it is smaller than the sum of its proper divisors (1051174276848).

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

612215542152 is a wasteful number, since it uses less digits than its factorization.

612215542152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19255 (or 19248 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The spelling of 612215542152 in words is "six hundred twelve billion, two hundred fifteen million, five hundred forty-two thousand, one hundred fifty-two".