8015961420 has 48 divisors (see below), whose sum is σ = 24938548320. Its totient is φ = 2137589568.

The previous prime is 8015961409. The next prime is 8015961439. The reversal of 8015961420 is 241695108.

8015961420 is a `hidden beast` number, since 8 + 0 + 15 + 9 + 614 + 20 = 666.

It is a super-3 number, since 3×8015961420³ (a number of 31 digits) contains 333 as substring.

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

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, 7421647 + ... + 7422726.

It is an arithmetic number, because the mean of its divisors is an integer number (519553090).

Almost surely, 2^8015961420 is an apocalyptic number.

It is an amenable number.

8015961420 is an abundant number, since it is smaller than the sum of its proper divisors (16922586900).

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

8015961420 is a wasteful number, since it uses less digits than its factorization.

8015961420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14844391 (or 14844383 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 8015961420 is about 89531.9016887277. The cubic root of 8015961420 is about 2001.3292347052.

The spelling of 8015961420 in words is "eight billion, fifteen million, nine hundred sixty-one thousand, four hundred twenty".