245536001556 has 48 divisors (see below), whose sum is σ = 577393130496. Its totient is φ = 81206544384.

The previous prime is 245536001489. The next prime is 245536001573. The reversal of 245536001556 is 655100635542.

It is a super-2 number, since 2×245536001556² (a number of 24 digits) contains 22 as substring.

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, 3278925 + ... + 3352971.

It is an arithmetic number, because the mean of its divisors is an integer number (12029023552).

Almost surely, 2^245536001556 is an apocalyptic number.

It is an amenable number.

245536001556 is an abundant number, since it is smaller than the sum of its proper divisors (331857128940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245536001556 is a wasteful number, since it uses less digits than its factorization.

245536001556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76208 (or 76206 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 245536001556 in words is "two hundred forty-five billion, five hundred thirty-six million, one thousand, five hundred fifty-six".