12254355661620 has 96 divisors (see below), whose sum is σ = 34877746181376. Its totient is φ = 3213975628800.

The previous prime is 12254355661619. The next prime is 12254355661633. The reversal of 12254355661620 is 2616655345221.

It is a self number, because there is not a number n which added to its sum of digits gives 12254355661620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43402305 + ... + 43683735.

It is an arithmetic number, because the mean of its divisors is an integer number (363309856056).

Almost surely, 2^{12254355661620} is an apocalyptic number.

12254355661620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12254355661620 is an abundant number, since it is smaller than the sum of its proper divisors (22623390519756).

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

12254355661620 is a wasteful number, since it uses less digits than its factorization.

12254355661620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293401 (or 293399 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 12254355661620 in words is "twelve trillion, two hundred fifty-four billion, three hundred fifty-five million, six hundred sixty-one thousand, six hundred twenty".