5151161620 has 24 divisors (see below), whose sum is σ = 11800843488. Its totient is φ = 1873149600.

The previous prime is 5151161599. The next prime is 5151161677. The reversal of 5151161620 is 261611515.

It is a happy number.

It is a super-2 number, since 2×5151161620² = 53068932070722048800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11706966 + ... + 11707405.

It is an arithmetic number, because the mean of its divisors is an integer number (491701812).

Almost surely, 2^5151161620 is an apocalyptic number.

It is an amenable number.

5151161620 is an abundant number, since it is smaller than the sum of its proper divisors (6649681868).

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

5151161620 is a wasteful number, since it uses less digits than its factorization.

5151161620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23414391 (or 23414389 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 5151161620 is about 71771.5934057479. The cubic root of 5151161620 is about 1727.0373318281.

The spelling of 5151161620 in words is "five billion, one hundred fifty-one million, one hundred sixty-one thousand, six hundred twenty".