15011420420051 has 32 divisors (see below), whose sum is σ = 16616710656000. Its totient is φ = 13447546992000.

The previous prime is 15011420420039. The next prime is 15011420420093. The reversal of 15011420420051 is 15002402411051.

It is a happy number.

It is not a de Polignac number, because 15011420420051 - 2⁶ = 15011420419987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15011420420051.

It is not an unprimeable number, because it can be changed into a prime (15011420470051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1668116450 + ... + 1668125448.

It is an arithmetic number, because the mean of its divisors is an integer number (519272208000).

Almost surely, 2^{15011420420051} is an apocalyptic number.

15011420420051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15011420420051 is a deficient number, since it is larger than the sum of its proper divisors (1605290235949).

15011420420051 is a wasteful number, since it uses less digits than its factorization.

15011420420051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16067.

The product of its (nonzero) digits is 1600, while the sum is 26.

The spelling of 15011420420051 in words is "fifteen trillion, eleven billion, four hundred twenty million, four hundred twenty thousand, fifty-one".