11601655611506 has 16 divisors (see below), whose sum is σ = 17622338934816. Its totient is φ = 5727895815456.

The previous prime is 11601655611499. The next prime is 11601655611521. The reversal of 11601655611506 is 60511655610611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88229651 + ... + 88361046.

It is an arithmetic number, because the mean of its divisors is an integer number (1101396183426).

Almost surely, 2^{11601655611506} is an apocalyptic number.

11601655611506 is a deficient number, since it is larger than the sum of its proper divisors (6020683323310).

11601655611506 is a wasteful number, since it uses less digits than its factorization.

11601655611506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176591113.

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 11601655611506 in words is "eleven trillion, six hundred one billion, six hundred fifty-five million, six hundred eleven thousand, five hundred six".