2621042606161 has 16 divisors (see below), whose sum is σ = 3176805778560. Its totient is φ = 2111038560000.

The previous prime is 2621042606113. The next prime is 2621042606213. The reversal of 2621042606161 is 1616062401262.

It is a cyclic number.

It is not a de Polignac number, because 2621042606161 - 2¹⁹ = 2621042081873 is a prime.

It is a super-2 number, since 2×2621042606161² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2621042606161.

It is not an unprimeable number, because it can be changed into a prime (2621042606111) 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, 17717590 + ... + 17864911.

It is an arithmetic number, because the mean of its divisors is an integer number (198550361160).

Almost surely, 2^{2621042606161} is an apocalyptic number.

It is an amenable number.

2621042606161 is a deficient number, since it is larger than the sum of its proper divisors (555763172399).

2621042606161 is a wasteful number, since it uses less digits than its factorization.

2621042606161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35583144.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 2621042606161 in words is "two trillion, six hundred twenty-one billion, forty-two million, six hundred six thousand, one hundred sixty-one".