11618152780065 has 64 divisors (see below), whose sum is σ = 20037179022336. Its totient is φ = 5714506248192.

The previous prime is 11618152780051. The next prime is 11618152780139. The reversal of 11618152780065 is 56008725181611.

It is not a de Polignac number, because 11618152780065 - 2¹⁸ = 11618152517921 is a prime.

It is a super-2 number, since 2×11618152780065² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1847961352 + ... + 1847967638.

It is an arithmetic number, because the mean of its divisors is an integer number (313080922224).

Almost surely, 2^{11618152780065} is an apocalyptic number.

11618152780065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11618152780065 is a deficient number, since it is larger than the sum of its proper divisors (8419026242271).

11618152780065 is a wasteful number, since it uses less digits than its factorization.

11618152780065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13418.

The product of its (nonzero) digits is 806400, while the sum is 51.

The spelling of 11618152780065 in words is "eleven trillion, six hundred eighteen billion, one hundred fifty-two million, seven hundred eighty thousand, sixty-five".