73661622030 has 96 divisors (see below), whose sum is σ = 202990567104. Its totient is φ = 18468983808.

The previous prime is 73661622029. The next prime is 73661622031. The reversal of 73661622030 is 3022616637.

73661622030 is a `hidden beast` number, since 7 + 3 + 6 + 616 + 2 + 2 + 0 + 30 = 666.

It is an interprime number because it is at equal distance from previous prime (73661622029) and next prime (73661622031).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73661622031) 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, 1526127 + ... + 1573653.

It is an arithmetic number, because the mean of its divisors is an integer number (2114485074).

Almost surely, 2^73661622030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73661622030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101495283552).

73661622030 is an abundant number, since it is smaller than the sum of its proper divisors (129328945074).

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

73661622030 is a wasteful number, since it uses less digits than its factorization.

73661622030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48570 (or 48567 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The spelling of 73661622030 in words is "seventy-three billion, six hundred sixty-one million, six hundred twenty-two thousand, thirty".