1655972957460 has 192 divisors, whose sum is σ = 4807413338112. Its totient is φ = 425669650944.

The previous prime is 1655972957459. The next prime is 1655972957477. The reversal of 1655972957460 is 647592795561.

It is a junction number, because it is equal to n+sod(n) for n = 1655972957391 and 1655972957400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52185159 + ... + 52216881.

It is an arithmetic number, because the mean of its divisors is an integer number (25038611136).

Almost surely, 2^{1655972957460} is an apocalyptic number.

1655972957460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1655972957460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2403706669056).

1655972957460 is an abundant number, since it is smaller than the sum of its proper divisors (3151440380652).

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

1655972957460 is a wasteful number, since it uses less digits than its factorization.

1655972957460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32062 (or 32060 counting only the distinct ones).

The product of its (nonzero) digits is 142884000, while the sum is 66.

The spelling of 1655972957460 in words is "one trillion, six hundred fifty-five billion, nine hundred seventy-two million, nine hundred fifty-seven thousand, four hundred sixty".