21611246101513 has 8 divisors (see below), whose sum is σ = 21648699256320. Its totient is φ = 21573813492000.

The previous prime is 21611246101507. The next prime is 21611246101541. The reversal of 21611246101513 is 31510164211612.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21611246101513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21611246101013) 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, 3029988 + ... + 7239013.

It is an arithmetic number, because the mean of its divisors is an integer number (2706087407040).

Almost surely, 2^{21611246101513} is an apocalyptic number.

It is an amenable number.

21611246101513 is a deficient number, since it is larger than the sum of its proper divisors (37453154807).

21611246101513 is a wasteful number, since it uses less digits than its factorization.

21611246101513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10272647.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 21611246101513 in words is "twenty-one trillion, six hundred eleven billion, two hundred forty-six million, one hundred one thousand, five hundred thirteen".