2051105501577 has 24 divisors (see below), whose sum is σ = 3006137522080. Its totient is φ = 1243048910400.

The previous prime is 2051105501561. The next prime is 2051105501579. The reversal of 2051105501577 is 7751055011502.

It is not a de Polignac number, because 2051105501577 - 2⁴ = 2051105501561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051105501579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11735802 + ... + 11909292.

Almost surely, 2^{2051105501577} is an apocalyptic number.

It is an amenable number.

2051105501577 is a deficient number, since it is larger than the sum of its proper divisors (955032020503).

2051105501577 is a wasteful number, since it uses less digits than its factorization.

2051105501577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206085 (or 206074 counting only the distinct ones).

The product of its (nonzero) digits is 61250, while the sum is 39.

The spelling of 2051105501577 in words is "two trillion, fifty-one billion, one hundred five million, five hundred one thousand, five hundred seventy-seven".