25122161520673 has 16 divisors (see below), whose sum is σ = 28911113280000. Its totient is φ = 21383301448512.

The previous prime is 25122161520667. The next prime is 25122161520737. The reversal of 25122161520673 is 37602516122152.

It is a cyclic number.

It is not a de Polignac number, because 25122161520673 - 2²¹ = 25122159423521 is a prime.

It is a super-2 number, since 2×25122161520673² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25122161520653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1014483 + ... + 7160551.

It is an arithmetic number, because the mean of its divisors is an integer number (1806944580000).

Almost surely, 2^{25122161520673} is an apocalyptic number.

It is an amenable number.

25122161520673 is a deficient number, since it is larger than the sum of its proper divisors (3788951759327).

25122161520673 is a wasteful number, since it uses less digits than its factorization.

25122161520673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6150144.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 25122161520673 in words is "twenty-five trillion, one hundred twenty-two billion, one hundred sixty-one million, five hundred twenty thousand, six hundred seventy-three".