11346561655 has 32 divisors (see below), whose sum is σ = 16015200768. Its totient is φ = 7608259200.

The previous prime is 11346561649. The next prime is 11346561659. The reversal of 11346561655 is 55616564311.

It is not a de Polignac number, because 11346561655 - 2³ = 11346561647 is a prime.

It is a super-2 number, since 2×11346561655² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11346561659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 625260 + ... + 643150.

It is an arithmetic number, because the mean of its divisors is an integer number (500475024).

Almost surely, 2^11346561655 is an apocalyptic number.

11346561655 is a deficient number, since it is larger than the sum of its proper divisors (4668639113).

11346561655 is a wasteful number, since it uses less digits than its factorization.

11346561655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18807.

The product of its digits is 324000, while the sum is 43.

It can be divided in two parts, 1134656 and 1655, that added together give a palindrome (1136311).

The spelling of 11346561655 in words is "eleven billion, three hundred forty-six million, five hundred sixty-one thousand, six hundred fifty-five".