253464072720 has 80 divisors (see below), whose sum is σ = 793367233152. Its totient is φ = 66934195200.

The previous prime is 253464072703. The next prime is 253464072727. The reversal of 253464072720 is 27270464352.

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

It is not an unprimeable number, because it can be changed into a prime (253464072727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5101981 + ... + 5151420.

Almost surely, 2^253464072720 is an apocalyptic number.

253464072720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253464072720 is an abundant number, since it is smaller than the sum of its proper divisors (539903160432).

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

253464072720 is a wasteful number, since it uses less digits than its factorization.

253464072720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253520 (or 10253514 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 253464072720 in words is "two hundred fifty-three billion, four hundred sixty-four million, seventy-two thousand, seven hundred twenty".