100642666136 has 8 divisors (see below), whose sum is σ = 188704999020. Its totient is φ = 50321333064.

The previous prime is 100642666133. The next prime is 100642666171. The reversal of 100642666136 is 631666246001.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×100642666136² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100642666093 and 100642666102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100642666133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6290166626 + ... + 6290166641.

Almost surely, 2^100642666136 is an apocalyptic number.

It is an amenable number.

100642666136 is a deficient number, since it is larger than the sum of its proper divisors (88062332884).

100642666136 is a wasteful number, since it uses less digits than its factorization.

100642666136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12580333273 (or 12580333269 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 100642666136 in words is "one hundred billion, six hundred forty-two million, six hundred sixty-six thousand, one hundred thirty-six".