10251421655140 has 96 divisors (see below), whose sum is σ = 21835324514304. Its totient is φ = 4042419765120.

The previous prime is 10251421655113. The next prime is 10251421655149. The reversal of 10251421655140 is 4155612415201.

It is a self number, because there is not a number n which added to its sum of digits gives 10251421655140.

It is not an unprimeable number, because it can be changed into a prime (10251421655149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1443248829 + ... + 1443255931.

It is an arithmetic number, because the mean of its divisors is an integer number (227451297024).

Almost surely, 2^{10251421655140} is an apocalyptic number.

10251421655140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10251421655140 is an abundant number, since it is smaller than the sum of its proper divisors (11583902859164).

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

10251421655140 is a wasteful number, since it uses less digits than its factorization.

10251421655140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10417 (or 10415 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 10251421655140 in words is "ten trillion, two hundred fifty-one billion, four hundred twenty-one million, six hundred fifty-five thousand, one hundred forty".