1240160706921 has 8 divisors (see below), whose sum is σ = 1654041661344. Its totient is φ = 826526778560.

The previous prime is 1240160706881. The next prime is 1240160706949. The reversal of 1240160706921 is 1296070610421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240160706921 - 2⁹ = 1240160706409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1240160706921.

It is not an unprimeable number, because it can be changed into a prime (1240160706121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61744800 + ... + 61764881.

It is an arithmetic number, because the mean of its divisors is an integer number (206755207668).

Almost surely, 2^{1240160706921} is an apocalyptic number.

It is an amenable number.

1240160706921 is a deficient number, since it is larger than the sum of its proper divisors (413880954423).

1240160706921 is a wasteful number, since it uses less digits than its factorization.

1240160706921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123513031.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 1240160706921 in words is "one trillion, two hundred forty billion, one hundred sixty million, seven hundred six thousand, nine hundred twenty-one".