2421550561064 has 8 divisors (see below), whose sum is σ = 4540407302010. Its totient is φ = 1210775280528.

The previous prime is 2421550561063. The next prime is 2421550561093. The reversal of 2421550561064 is 4601650551242.

It can be written as a sum of positive squares in only one way, i.e., 2415444388900 + 6106172164 = 1554170^2 + 78142^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2421550561063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151346910059 + ... + 151346910074.

Almost surely, 2^{2421550561064} is an apocalyptic number.

It is an amenable number.

2421550561064 is a deficient number, since it is larger than the sum of its proper divisors (2118856740946).

2421550561064 is a wasteful number, since it uses less digits than its factorization.

2421550561064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302693820139 (or 302693820135 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 2421550561064 in words is "two trillion, four hundred twenty-one billion, five hundred fifty million, five hundred sixty-one thousand, sixty-four".