2104165251501 has 16 divisors (see below), whose sum is σ = 2810339456064. Its totient is φ = 1400384329344.

The previous prime is 2104165251479. The next prime is 2104165251527. The reversal of 2104165251501 is 1051525614012.

It is a happy number.

It is not a de Polignac number, because 2104165251501 - 2²² = 2104161057197 is a prime.

It is a super-2 number, since 2×2104165251501² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104165251901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25359855 + ... + 25442691.

It is an arithmetic number, because the mean of its divisors is an integer number (175646216004).

Almost surely, 2^{2104165251501} is an apocalyptic number.

It is an amenable number.

2104165251501 is a deficient number, since it is larger than the sum of its proper divisors (706174204563).

2104165251501 is a wasteful number, since it uses less digits than its factorization.

2104165251501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97180.

The product of its (nonzero) digits is 12000, while the sum is 33.

The spelling of 2104165251501 in words is "two trillion, one hundred four billion, one hundred sixty-five million, two hundred fifty-one thousand, five hundred one".