855115420620 has 48 divisors (see below), whose sum is σ = 2394417150720. Its totient is φ = 228021829056.

The previous prime is 855115420561. The next prime is 855115420699. The reversal of 855115420620 is 26024511558.

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, 1339239 + ... + 1871841.

It is an arithmetic number, because the mean of its divisors is an integer number (49883690640).

Almost surely, 2^855115420620 is an apocalyptic number.

It is an amenable number.

855115420620 is an abundant number, since it is smaller than the sum of its proper divisors (1539301730100).

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

855115420620 is a wasteful number, since it uses less digits than its factorization.

855115420620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559374 (or 559372 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 855115420620 in words is "eight hundred fifty-five billion, one hundred fifteen million, four hundred twenty thousand, six hundred twenty".