2051530616572 has 24 divisors (see below), whose sum is σ = 3649666600832. Its totient is φ = 1008774561600.

The previous prime is 2051530616539. The next prime is 2051530616579. The reversal of 2051530616572 is 2756160351502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051530616579) 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, 687058 + ... + 2138950.

Almost surely, 2^{2051530616572} is an apocalyptic number.

It is an amenable number.

2051530616572 is a deficient number, since it is larger than the sum of its proper divisors (1598135984260).

2051530616572 is a wasteful number, since it uses less digits than its factorization.

2051530616572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457749 (or 1457747 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 2051530616572 in words is "two trillion, fifty-one billion, five hundred thirty million, six hundred sixteen thousand, five hundred seventy-two".