140021266121772 has 72 divisors (see below), whose sum is σ = 380065856330160. Its totient is φ = 40005219824640.

The previous prime is 140021266121741. The next prime is 140021266121791. The reversal of 140021266121772 is 277121662120041.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25206004 + ... + 30255332.

It is an arithmetic number, because the mean of its divisors is an integer number (5278692449030).

Almost surely, 2^{140021266121772} is an apocalyptic number.

140021266121772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140021266121772 is an abundant number, since it is smaller than the sum of its proper divisors (240044590208388).

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

140021266121772 is a wasteful number, since it uses less digits than its factorization.

140021266121772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5096511 (or 5096502 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 140021266121772 in words is "one hundred forty trillion, twenty-one billion, two hundred sixty-six million, one hundred twenty-one thousand, seven hundred seventy-two".