20013725501511 has 8 divisors (see below), whose sum is σ = 30497105526144. Its totient is φ = 11436414572280.

The previous prime is 20013725501479. The next prime is 20013725501513. The reversal of 20013725501511 is 11510552731002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20013725501511 - 2⁵ = 20013725501479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013725501513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476517273825 + ... + 476517273866.

It is an arithmetic number, because the mean of its divisors is an integer number (3812138190768).

Almost surely, 2^{20013725501511} is an apocalyptic number.

20013725501511 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20013725501511 is a deficient number, since it is larger than the sum of its proper divisors (10483380024633).

20013725501511 is an equidigital number, since it uses as much as digits as its factorization.

20013725501511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953034547701.

The product of its (nonzero) digits is 10500, while the sum is 33.

The spelling of 20013725501511 in words is "twenty trillion, thirteen billion, seven hundred twenty-five million, five hundred one thousand, five hundred eleven".