1955352659520 has 336 divisors, whose sum is σ = 6762885575040. Its totient is φ = 478428807168.

The previous prime is 1955352659497. The next prime is 1955352659563. The reversal of 1955352659520 is 259562535591.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27057996 + ... + 27130164.

It is an arithmetic number, because the mean of its divisors is an integer number (20127635640).

Almost surely, 2^{1955352659520} is an apocalyptic number.

1955352659520 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 1955352659520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3381442787520).

1955352659520 is an abundant number, since it is smaller than the sum of its proper divisors (4807532915520).

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

1955352659520 is a wasteful number, since it uses less digits than its factorization.

1955352659520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72382 (or 72359 counting only the distinct ones).

The product of its (nonzero) digits is 18225000, while the sum is 57.

The spelling of 1955352659520 in words is "one trillion, nine hundred fifty-five billion, three hundred fifty-two million, six hundred fifty-nine thousand, five hundred twenty".