20140665621435 has 96 divisors (see below), whose sum is σ = 38115239093568. Its totient is φ = 9799564369920.

The previous prime is 20140665621397. The next prime is 20140665621473. The reversal of 20140665621435 is 53412656604102.

20140665621435 is a `hidden beast` number, since 2 + 0 + 1 + 40 + 6 + 6 + 562 + 1 + 43 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (20140665621397) and next prime (20140665621473).

It is not a de Polignac number, because 20140665621435 - 2⁶ = 20140665621371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 372775 + ... + 6357695.

It is an arithmetic number, because the mean of its divisors is an integer number (397033740558).

Almost surely, 2^{20140665621435} is an apocalyptic number.

20140665621435 is a deficient number, since it is larger than the sum of its proper divisors (17974573472133).

20140665621435 is a wasteful number, since it uses less digits than its factorization.

20140665621435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5985085 (or 5985082 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 20140665621435 in words is "twenty trillion, one hundred forty billion, six hundred sixty-five million, six hundred twenty-one thousand, four hundred thirty-five".