245616651550 has 24 divisors (see below), whose sum is σ = 476709885936. Its totient is φ = 93975066240.

The previous prime is 245616651529. The next prime is 245616651551. The reversal of 245616651550 is 55156616542.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 245616651550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245616651551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106788699 + ... + 106790998.

It is an arithmetic number, because the mean of its divisors is an integer number (19862911914).

Almost surely, 2^245616651550 is an apocalyptic number.

245616651550 is a deficient number, since it is larger than the sum of its proper divisors (231093234386).

245616651550 is a wasteful number, since it uses less digits than its factorization.

245616651550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213579732 (or 213579727 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 46.

The spelling of 245616651550 in words is "two hundred forty-five billion, six hundred sixteen million, six hundred fifty-one thousand, five hundred fifty".