5155420816 has 80 divisors (see below), whose sum is σ = 13016916864. Its totient is φ = 1919526912.

The previous prime is 5155420703. The next prime is 5155420861. The reversal of 5155420816 is 6180245515.

It is a super-2 number, since 2×5155420816² = 53156727580092211712, which contains 22 as substring.

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, 79390 + ... + 128893.

Almost surely, 2^5155420816 is an apocalyptic number.

5155420816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5155420816 is an abundant number, since it is smaller than the sum of its proper divisors (7861496048).

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

5155420816 is a wasteful number, since it uses less digits than its factorization.

5155420816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208328 (or 208322 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 5155420816 is about 71801.2591533045. The cubic root of 5155420816 is about 1727.5131962777.

The spelling of 5155420816 in words is "five billion, one hundred fifty-five million, four hundred twenty thousand, eight hundred sixteen".