2221516454632 has 8 divisors (see below), whose sum is σ = 4165343352450. Its totient is φ = 1110758227312.

The previous prime is 2221516454569. The next prime is 2221516454681. The reversal of 2221516454632 is 2364546151222.

2221516454632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1764683755396 + 456832699236 = 1328414^2 + 675894^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138844778407 + ... + 138844778422.

Almost surely, 2^{2221516454632} is an apocalyptic number.

It is an amenable number.

2221516454632 is a deficient number, since it is larger than the sum of its proper divisors (1943826897818).

2221516454632 is a wasteful number, since it uses less digits than its factorization.

2221516454632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277689556835 (or 277689556831 counting only the distinct ones).

The product of its digits is 691200, while the sum is 43.

The spelling of 2221516454632 in words is "two trillion, two hundred twenty-one billion, five hundred sixteen million, four hundred fifty-four thousand, six hundred thirty-two".