2021097116780 has 48 divisors (see below), whose sum is σ = 4851875917056. Its totient is φ = 692770034880.

The previous prime is 2021097116777. The next prime is 2021097116827. The reversal of 2021097116780 is 876117901202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300526 + ... + 2394485.

It is an arithmetic number, because the mean of its divisors is an integer number (101080748272).

Almost surely, 2^{2021097116780} is an apocalyptic number.

2021097116780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021097116780 is an abundant number, since it is smaller than the sum of its proper divisors (2830778800276).

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

2021097116780 is a wasteful number, since it uses less digits than its factorization.

2021097116780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698934 (or 3698932 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 2021097116780 in words is "two trillion, twenty-one billion, ninety-seven million, one hundred sixteen thousand, seven hundred eighty".