1611603245320 has 64 divisors (see below), whose sum is σ = 3757403232000. Its totient is φ = 621679339008.

The previous prime is 1611603245299. The next prime is 1611603245333. The reversal of 1611603245320 is 235423061161.

It is a super-2 number, since 2×1611603245320² (a number of 25 digits) contains 22 as substring.

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, 5794365 + ... + 6066124.

It is an arithmetic number, because the mean of its divisors is an integer number (58709425500).

Almost surely, 2^{1611603245320} is an apocalyptic number.

1611603245320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1611603245320 is an abundant number, since it is smaller than the sum of its proper divisors (2145799986680).

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

1611603245320 is a wasteful number, since it uses less digits than its factorization.

1611603245320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11860622 (or 11860618 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 1611603245320 in words is "one trillion, six hundred eleven billion, six hundred three million, two hundred forty-five thousand, three hundred twenty".