1215625020620 has 12 divisors (see below), whose sum is σ = 2552812543344. Its totient is φ = 486250008240.

The previous prime is 1215625020613. The next prime is 1215625020637. The reversal of 1215625020620 is 260205265121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30390625496 + ... + 30390625535.

It is an arithmetic number, because the mean of its divisors is an integer number (212734378612).

Almost surely, 2^{1215625020620} is an apocalyptic number.

1215625020620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215625020620 is an abundant number, since it is smaller than the sum of its proper divisors (1337187522724).

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

1215625020620 is a wasteful number, since it uses less digits than its factorization.

1215625020620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60781251040 (or 60781251038 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 1215625020620 in words is "one trillion, two hundred fifteen billion, six hundred twenty-five million, twenty thousand, six hundred twenty".