11251613615 has 16 divisors (see below), whose sum is σ = 14875227936. Its totient is φ = 8101968000.

The previous prime is 11251613609. The next prime is 11251613621. The reversal of 11251613615 is 51631615211.

It is an interprime number because it is at equal distance from previous prime (11251613609) and next prime (11251613621).

It is not a de Polignac number, because 11251613615 - 2⁴ = 11251613599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007192 + ... + 1018301.

It is an arithmetic number, because the mean of its divisors is an integer number (929701746).

Almost surely, 2^11251613615 is an apocalyptic number.

11251613615 is a deficient number, since it is larger than the sum of its proper divisors (3623614321).

11251613615 is a wasteful number, since it uses less digits than its factorization.

11251613615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025610.

The product of its digits is 5400, while the sum is 32.

The spelling of 11251613615 in words is "eleven billion, two hundred fifty-one million, six hundred thirteen thousand, six hundred fifteen".