30550497840 has 200 divisors, whose sum is σ = 106293317328. Its totient is φ = 8132451840.

The previous prime is 30550497823. The next prime is 30550497851. The reversal of 30550497840 is 4879405503.

30550497840 is a `hidden beast` number, since 3 + 0 + 550 + 4 + 97 + 8 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3968395 + ... + 3976085.

Almost surely, 2^30550497840 is an apocalyptic number.

30550497840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30550497840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53146658664).

30550497840 is an abundant number, since it is smaller than the sum of its proper divisors (75742819488).

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

30550497840 is a wasteful number, since it uses less digits than its factorization.

30550497840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8329 (or 8314 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 30550497840 in words is "thirty billion, five hundred fifty million, four hundred ninety-seven thousand, eight hundred forty".