1653563640630 has 32 divisors (see below), whose sum is σ = 4329330259968. Its totient is φ = 400863912800.

The previous prime is 1653563640587. The next prime is 1653563640671. The reversal of 1653563640630 is 360463653561.

It is a super-2 number, since 2×1653563640630² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1653563640630.

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, 2505399126 + ... + 2505399785.

It is an arithmetic number, because the mean of its divisors is an integer number (135291570624).

Almost surely, 2^{1653563640630} is an apocalyptic number.

1653563640630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1653563640630 is an abundant number, since it is smaller than the sum of its proper divisors (2675766619338).

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

1653563640630 is a wasteful number, since it uses less digits than its factorization.

1653563640630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010798932.

The product of its (nonzero) digits is 3499200, while the sum is 48.

The spelling of 1653563640630 in words is "one trillion, six hundred fifty-three billion, five hundred sixty-three million, six hundred forty thousand, six hundred thirty".