2051665600007 has 8 divisors (see below), whose sum is σ = 2078481158400. Its totient is φ = 2024871169464.

The previous prime is 2051665600001. The next prime is 2051665600037. The reversal of 2051665600007 is 7000065661502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2051665600007 - 2²⁶ = 2051598491143 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 (2051665600001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5086433 + ... + 5474954.

It is an arithmetic number, because the mean of its divisors is an integer number (259810144800).

Almost surely, 2^{2051665600007} is an apocalyptic number.

2051665600007 is a deficient number, since it is larger than the sum of its proper divisors (26815558393).

2051665600007 is a wasteful number, since it uses less digits than its factorization.

2051665600007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10563925.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 2051665600007 in words is "two trillion, fifty-one billion, six hundred sixty-five million, six hundred thousand, seven".