641124644023501 has 32 divisors (see below), whose sum is σ = 719877161203200. Its totient is φ = 565944558137280.

The previous prime is 641124644023489. The next prime is 641124644023517. The reversal of 641124644023501 is 105320446421146.

It is a cyclic number.

It is not a de Polignac number, because 641124644023501 - 2⁷ = 641124644023373 is a prime.

It is a super-2 number, since 2×641124644023501² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641124644023541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296697310 + ... + 298850368.

It is an arithmetic number, because the mean of its divisors is an integer number (22496161287600).

Almost surely, 2^{641124644023501} is an apocalyptic number.

It is an amenable number.

641124644023501 is a deficient number, since it is larger than the sum of its proper divisors (78752517179699).

641124644023501 is a wasteful number, since it uses less digits than its factorization.

641124644023501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156809.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 641124644023501 in words is "six hundred forty-one trillion, one hundred twenty-four billion, six hundred forty-four million, twenty-three thousand, five hundred one".