64100061 has 12 divisors (see below), whose sum is σ = 92658592. Its totient is φ = 42701256.

The previous prime is 64099999. The next prime is 64100083. The reversal of 64100061 is 16000146.

It is not a de Polignac number, because 64100061 - 2²² = 59905757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64100461) 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, 20760 + ... + 23646.

Almost surely, 2^64100061 is an apocalyptic number.

It is an amenable number.

64100061 is a deficient number, since it is larger than the sum of its proper divisors (28558531).

64100061 is a wasteful number, since it uses less digits than its factorization.

64100061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5360 (or 5357 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 64100061 is about 8006.2513700233. The cubic root of 64100061 is about 400.2083518716.

The spelling of 64100061 in words is "sixty-four million, one hundred thousand, sixty-one".