20141621608 has 8 divisors (see below), whose sum is σ = 37765540530. Its totient is φ = 10070810800.

The previous prime is 20141621597. The next prime is 20141621609. The reversal of 20141621608 is 80612614102.

It can be written as a sum of positive squares in only one way, i.e., 13805780004 + 6335841604 = 117498^2 + 79598^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20141621608.

It is not an unprimeable number, because it can be changed into a prime (20141621609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1258851343 + ... + 1258851358.

Almost surely, 2^20141621608 is an apocalyptic number.

It is an amenable number.

20141621608 is a deficient number, since it is larger than the sum of its proper divisors (17623918922).

20141621608 is a wasteful number, since it uses less digits than its factorization.

20141621608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517702707 (or 2517702703 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 20141621608 in words is "twenty billion, one hundred forty-one million, six hundred twenty-one thousand, six hundred eight".