140990164721 has 8 divisors (see below), whose sum is σ = 161134299264. Its totient is φ = 120846700800.

The previous prime is 140990164709. The next prime is 140990164727. The reversal of 140990164721 is 127461099041.

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

It is not a de Polignac number, because 140990164721 - 2²² = 140985970417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140990164727) 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, 420356 + ... + 677258.

It is an arithmetic number, because the mean of its divisors is an integer number (20141787408).

Almost surely, 2^140990164721 is an apocalyptic number.

It is an amenable number.

140990164721 is a deficient number, since it is larger than the sum of its proper divisors (20144134543).

140990164721 is an equidigital number, since it uses as much as digits as its factorization.

140990164721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335311.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 140990164721 in words is "one hundred forty billion, nine hundred ninety million, one hundred sixty-four thousand, seven hundred twenty-one".