25656466465652 has 48 divisors (see below), whose sum is σ = 50671958145984. Its totient is φ = 11264940960000.

The previous prime is 25656466465639. The next prime is 25656466465697.

It is a happy number.

25656466465652 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70223678 + ... + 70588085.

It is an arithmetic number, because the mean of its divisors is an integer number (1055665794708).

Almost surely, 2^{25656466465652} is an apocalyptic number.

25656466465652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25656466465652 is a deficient number, since it is larger than the sum of its proper divisors (25015491680332).

25656466465652 is a wasteful number, since it uses less digits than its factorization.

25656466465652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140811920 (or 140811918 counting only the distinct ones).

The product of its digits is 1866240000, while the sum is 68.

The spelling of 25656466465652 in words is "twenty-five trillion, six hundred fifty-six billion, four hundred sixty-six million, four hundred sixty-five thousand, six hundred fifty-two".