257052611151420 has 96 divisors (see below), whose sum is σ = 822587732456448. Its totient is φ = 58753498493952.

The previous prime is 257052611151407. The next prime is 257052611151473. The reversal of 257052611151420 is 24151116250752.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10695009 + ... + 25069671.

It is an arithmetic number, because the mean of its divisors is an integer number (8568622213088).

Almost surely, 2^{257052611151420} is an apocalyptic number.

257052611151420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257052611151420 is an abundant number, since it is smaller than the sum of its proper divisors (565535121305028).

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

257052611151420 is a wasteful number, since it uses less digits than its factorization.

257052611151420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14417259 (or 14417257 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 257052611151420 in words is "two hundred fifty-seven trillion, fifty-two billion, six hundred eleven million, one hundred fifty-one thousand, four hundred twenty".