101161064988 has 36 divisors (see below), whose sum is σ = 256082816808. Its totient is φ = 33671547360.

The previous prime is 101161064987. The next prime is 101161064989. The reversal of 101161064988 is 889460161101.

It is a happy number.

101161064988 is a `hidden beast` number, since 10 + 11 + 610 + 6 + 4 + 9 + 8 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (101161064987) and next prime (101161064989).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×101161064988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101161064987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2008431 + ... + 2058182.

It is an arithmetic number, because the mean of its divisors is an integer number (7113411578).

Almost surely, 2^101161064988 is an apocalyptic number.

101161064988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

101161064988 is an abundant number, since it is smaller than the sum of its proper divisors (154921751820).

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

101161064988 is a wasteful number, since it uses less digits than its factorization.

101161064988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067314 (or 4067309 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 101161064988 in words is "one hundred one billion, one hundred sixty-one million, sixty-four thousand, nine hundred eighty-eight".