1320826605630 has 128 divisors (see below), whose sum is σ = 3885468134400. Its totient is φ = 280617053184.

The previous prime is 1320826605613. The next prime is 1320826605661. The reversal of 1320826605630 is 365066280231.

It is a super-3 number, since 3×1320826605630³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 2911495 + ... + 3334434.

It is an arithmetic number, because the mean of its divisors is an integer number (30355219800).

Almost surely, 2^{1320826605630} is an apocalyptic number.

1320826605630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320826605630 is an abundant number, since it is smaller than the sum of its proper divisors (2564641528770).

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

1320826605630 is a wasteful number, since it uses less digits than its factorization.

1320826605630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6246018.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 1320826605630 in words is "one trillion, three hundred twenty billion, eight hundred twenty-six million, six hundred five thousand, six hundred thirty".