6557061020501 has 32 divisors (see below), whose sum is σ = 6943008780288. Its totient is φ = 6180206376960.

The previous prime is 6557061020491. The next prime is 6557061020533. The reversal of 6557061020501 is 1050201607556.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6557061020501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6557061020551) 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, 1179961415 + ... + 1179966971.

It is an arithmetic number, because the mean of its divisors is an integer number (216969024384).

Almost surely, 2^{6557061020501} is an apocalyptic number.

It is an amenable number.

6557061020501 is a deficient number, since it is larger than the sum of its proper divisors (385947759787).

6557061020501 is a wasteful number, since it uses less digits than its factorization.

6557061020501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8261.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 6557061020501 in words is "six trillion, five hundred fifty-seven billion, sixty-one million, twenty thousand, five hundred one".