34220621550 has 48 divisors (see below), whose sum is σ = 85173624432. Its totient is φ = 9092544000.

The previous prime is 34220621521. The next prime is 34220621569. The reversal of 34220621550 is 5512602243.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370251 + ... + 453350.

It is an arithmetic number, because the mean of its divisors is an integer number (1774450509).

Almost surely, 2^34220621550 is an apocalyptic number.

34220621550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

34220621550 is an abundant number, since it is smaller than the sum of its proper divisors (50953002882).

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

34220621550 is a wasteful number, since it uses less digits than its factorization.

34220621550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823893 (or 823888 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 34220621550 in words is "thirty-four billion, two hundred twenty million, six hundred twenty-one thousand, five hundred fifty".