1612655620601 has 4 divisors (see below), whose sum is σ = 1612668090000. Its totient is φ = 1612643151204.

The previous prime is 1612655620573. The next prime is 1612655620603. The reversal of 1612655620601 is 1060265562161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1612655620601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1612655620603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6038651 + ... + 6300048.

It is an arithmetic number, because the mean of its divisors is an integer number (403167022500).

Almost surely, 2^{1612655620601} is an apocalyptic number.

It is an amenable number.

1612655620601 is a deficient number, since it is larger than the sum of its proper divisors (12469399).

1612655620601 is a wasteful number, since it uses less digits than its factorization.

1612655620601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12469398.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 1612655620601 in words is "one trillion, six hundred twelve billion, six hundred fifty-five million, six hundred twenty thousand, six hundred one".