140364644505 has 16 divisors (see below), whose sum is σ = 225014505984. Its totient is φ = 74717452160.

The previous prime is 140364644503. The next prime is 140364644521. The reversal of 140364644505 is 505446463041.

It is not a de Polignac number, because 140364644505 - 2¹ = 140364644503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140364644503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8972649 + ... + 8988278.

It is an arithmetic number, because the mean of its divisors is an integer number (14063406624).

Almost surely, 2^140364644505 is an apocalyptic number.

140364644505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140364644505 is a deficient number, since it is larger than the sum of its proper divisors (84649861479).

140364644505 is a wasteful number, since it uses less digits than its factorization.

140364644505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17961456.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 140364644505 in words is "one hundred forty billion, three hundred sixty-four million, six hundred forty-four thousand, five hundred five".