36111166640 has 20 divisors (see below), whose sum is σ = 83958462624. Its totient is φ = 14444466624.

The previous prime is 36111166613. The next prime is 36111166643. The reversal of 36111166640 is 4666111163.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×36111166640³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 36111166640.

It is not an unprimeable number, because it can be changed into a prime (36111166643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225694712 + ... + 225694871.

Almost surely, 2^36111166640 is an apocalyptic number.

It is an amenable number.

36111166640 is an abundant number, since it is smaller than the sum of its proper divisors (47847295984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36111166640 is a wasteful number, since it uses less digits than its factorization.

36111166640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451389596 (or 451389590 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 36111166640 in words is "thirty-six billion, one hundred eleven million, one hundred sixty-six thousand, six hundred forty".