146211425550 has 72 divisors (see below), whose sum is σ = 403438202856. Its totient is φ = 37935933120.

The previous prime is 146211425537. The next prime is 146211425551. The reversal of 146211425550 is 55524112641.

146211425550 is a `hidden beast` number, since 1 + 4 + 62 + 1 + 1 + 42 + 5 + 550 = 666.

It is a super-2 number, since 2×146211425550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146211425551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4374084 + ... + 4407383.

It is an arithmetic number, because the mean of its divisors is an integer number (5603308373).

Almost surely, 2^146211425550 is an apocalyptic number.

146211425550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146211425550 is an abundant number, since it is smaller than the sum of its proper divisors (257226777306).

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

146211425550 is a wasteful number, since it uses less digits than its factorization.

146211425550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781522 (or 8781514 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 146211425550 in words is "one hundred forty-six billion, two hundred eleven million, four hundred twenty-five thousand, five hundred fifty".