25122667016 has 16 divisors (see below), whose sum is σ = 48253903740. Its totient is φ = 12254959360.

The previous prime is 25122667013. The next prime is 25122667039. The reversal of 25122667016 is 61076622152.

It can be written as a sum of positive squares in 2 ways, for example, as 22423864516 + 2698802500 = 149746^2 + 51950^2 .

It is a super-2 number, since 2×25122667016² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25122667013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38296421 + ... + 38297076.

Almost surely, 2^25122667016 is an apocalyptic number.

It is an amenable number.

25122667016 is a deficient number, since it is larger than the sum of its proper divisors (23131236724).

25122667016 is a wasteful number, since it uses less digits than its factorization.

25122667016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76593544 (or 76593540 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 25122667016 in words is "twenty-five billion, one hundred twenty-two million, six hundred sixty-seven thousand, sixteen".