802161468251 has 32 divisors (see below), whose sum is σ = 958570986240. Its totient is φ = 661596163200.

The previous prime is 802161468239. The next prime is 802161468253. The reversal of 802161468251 is 152864161208.

802161468251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 802161468251 - 2⁶ = 802161468187 is a prime.

It is a super-2 number, since 2×802161468251² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (802161468253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71227961 + ... + 71239221.

It is an arithmetic number, because the mean of its divisors is an integer number (29955343320).

Almost surely, 2^802161468251 is an apocalyptic number.

802161468251 is a deficient number, since it is larger than the sum of its proper divisors (156409517989).

802161468251 is a wasteful number, since it uses less digits than its factorization.

802161468251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19787.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 802161468251 in words is "eight hundred two billion, one hundred sixty-one million, four hundred sixty-eight thousand, two hundred fifty-one".