253073403660 has 288 divisors, whose sum is σ = 912661440768. Its totient is φ = 51801361920.

The previous prime is 253073403623. The next prime is 253073403683. The reversal of 253073403660 is 66304370352.

It is a happy number.

It is a super-2 number, since 2×253073403660² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2108382 + ... + 2225178.

It is an arithmetic number, because the mean of its divisors is an integer number (3168963336).

Almost surely, 2^253073403660 is an apocalyptic number.

253073403660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253073403660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456330720384).

253073403660 is an abundant number, since it is smaller than the sum of its proper divisors (659588037108).

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

253073403660 is a wasteful number, since it uses less digits than its factorization.

253073403660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116901 (or 116892 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 39.

The spelling of 253073403660 in words is "two hundred fifty-three billion, seventy-three million, four hundred three thousand, six hundred sixty".