11621161011515 has 16 divisors (see below), whose sum is σ = 15213602273760. Its totient is φ = 8451505662720.

The previous prime is 11621161011487. The next prime is 11621161011557. The reversal of 11621161011515 is 51511016112611.

It is not a de Polignac number, because 11621161011515 - 2¹⁰ = 11621161010491 is a prime.

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, 1194020 + ... + 4966689.

It is an arithmetic number, because the mean of its divisors is an integer number (950850142110).

Almost surely, 2^{11621161011515} is an apocalyptic number.

11621161011515 is a deficient number, since it is larger than the sum of its proper divisors (3592441262245).

11621161011515 is a wasteful number, since it uses less digits than its factorization.

11621161011515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6195022.

The product of its (nonzero) digits is 1800, while the sum is 32.

The spelling of 11621161011515 in words is "eleven trillion, six hundred twenty-one billion, one hundred sixty-one million, eleven thousand, five hundred fifteen".