64123661030 has 32 divisors (see below), whose sum is σ = 135601367328. Its totient is φ = 21524025600.

The previous prime is 64123661027. The next prime is 64123661039. The reversal of 64123661030 is 3016632146.

It is a super-3 number, since 3×64123661030³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64123661039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22419431 + ... + 22422290.

It is an arithmetic number, because the mean of its divisors is an integer number (4237542729).

Almost surely, 2^64123661030 is an apocalyptic number.

64123661030 is an abundant number, since it is smaller than the sum of its proper divisors (71477706298).

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

64123661030 is a wasteful number, since it uses less digits than its factorization.

64123661030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44841752.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 64123661030 in words is "sixty-four billion, one hundred twenty-three million, six hundred sixty-one thousand, thirty".