4455045402021 has 48 divisors (see below), whose sum is σ = 6615033384960. Its totient is φ = 2887827357600.

The previous prime is 4455045402011. The next prime is 4455045402023. The reversal of 4455045402021 is 1202045405544.

4455045402021 is a `hidden beast` number, since 4 + 4 + 550 + 45 + 40 + 2 + 0 + 21 = 666.

It is not a de Polignac number, because 4455045402021 - 2⁹ = 4455045401509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4455045402023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80459496 + ... + 80514846.

It is an arithmetic number, because the mean of its divisors is an integer number (137813195520).

Almost surely, 2^{4455045402021} is an apocalyptic number.

It is an amenable number.

4455045402021 is a deficient number, since it is larger than the sum of its proper divisors (2159987982939).

4455045402021 is a wasteful number, since it uses less digits than its factorization.

4455045402021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56646 (or 56643 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

The spelling of 4455045402021 in words is "four trillion, four hundred fifty-five billion, forty-five million, four hundred two thousand, twenty-one".