20305405450332 has 48 divisors (see below), whose sum is σ = 52799856447520. Its totient is φ = 6748383995136.

The previous prime is 20305405450307. The next prime is 20305405450357. The reversal of 20305405450332 is 23305450450302.

20305405450332 is a `hidden beast` number, since 2 + 0 + 30 + 5 + 40 + 54 + 503 + 32 = 666.

20305405450332 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (20305405450307) and next prime (20305405450357).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278914663 + ... + 278987454.

Almost surely, 2^{20305405450332} is an apocalyptic number.

It is an amenable number.

20305405450332 is an abundant number, since it is smaller than the sum of its proper divisors (32494450997188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20305405450332 is a wasteful number, since it uses less digits than its factorization.

20305405450332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557902467 (or 557902459 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

The spelling of 20305405450332 in words is "twenty trillion, three hundred five billion, four hundred five million, four hundred fifty thousand, three hundred thirty-two".