1012171800960 has 160 divisors (see below), whose sum is σ = 3614648439600. Its totient is φ = 269912466432.

The previous prime is 1012171800953. The next prime is 1012171800979. The reversal of 1012171800960 is 690081712101.

It is a tau number, because it is divible by the number of its divisors (160).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9710620 + ... + 9814299.

Almost surely, 2^{1012171800960} is an apocalyptic number.

1012171800960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012171800960 is an abundant number, since it is smaller than the sum of its proper divisors (2602476638640).

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

1012171800960 is an equidigital number, since it uses as much as digits as its factorization.

1012171800960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19524950 (or 19524929 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The spelling of 1012171800960 in words is "one trillion, twelve billion, one hundred seventy-one million, eight hundred thousand, nine hundred sixty".