1020906846640 has 40 divisors (see below), whose sum is σ = 2513232446400. Its totient is φ = 384341400576.

The previous prime is 1020906846637. The next prime is 1020906846671. The reversal of 1020906846640 is 466486090201.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375332040 + ... + 375334759.

It is an arithmetic number, because the mean of its divisors is an integer number (62830811160).

Almost surely, 2^{1020906846640} is an apocalyptic number.

1020906846640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020906846640 is an abundant number, since it is smaller than the sum of its proper divisors (1492325599760).

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

1020906846640 is a wasteful number, since it uses less digits than its factorization.

1020906846640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750666829 (or 750666823 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 1020906846640 in words is "one trillion, twenty billion, nine hundred six million, eight hundred forty-six thousand, six hundred forty".