245661265102 has 32 divisors (see below), whose sum is σ = 402827476320. Its totient is φ = 111432161280.

The previous prime is 245661265097. The next prime is 245661265117. The reversal of 245661265102 is 201562166542.

It is a happy number.

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, 22415008 + ... + 22425964.

It is an arithmetic number, because the mean of its divisors is an integer number (12588358635).

Almost surely, 2^245661265102 is an apocalyptic number.

245661265102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

245661265102 is a deficient number, since it is larger than the sum of its proper divisors (157166211218).

245661265102 is a wasteful number, since it uses less digits than its factorization.

245661265102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12996.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 245661265102 in words is "two hundred forty-five billion, six hundred sixty-one million, two hundred sixty-five thousand, one hundred two".