1651005212160 has 80 divisors (see below), whose sum is σ = 5278057312176. Its totient is φ = 440268054528.

The previous prime is 1651005212149. The next prime is 1651005212179. The reversal of 1651005212160 is 612125001561.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1651005212160² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107479639 + ... + 107494998.

Almost surely, 2^{1651005212160} is an apocalyptic number.

1651005212160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1651005212160 is an abundant number, since it is smaller than the sum of its proper divisors (3627052100016).

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

1651005212160 is an equidigital number, since it uses as much as digits as its factorization.

1651005212160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214974663 (or 214974647 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 1651005212160 in words is "one trillion, six hundred fifty-one billion, five million, two hundred twelve thousand, one hundred sixty".