146985055780 has 24 divisors (see below), whose sum is σ = 309543047352. Its totient is φ = 58627464192.

The previous prime is 146985055769. The next prime is 146985055787. The reversal of 146985055780 is 87550589641.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53583916324 + 93401139456 = 231482^2 + 305616^2 .

It is a super-2 number, since 2×146985055780² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146985055787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10402647 + ... + 10416766.

It is an arithmetic number, because the mean of its divisors is an integer number (12897626973).

Almost surely, 2^146985055780 is an apocalyptic number.

146985055780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146985055780 is an abundant number, since it is smaller than the sum of its proper divisors (162557991572).

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

146985055780 is a wasteful number, since it uses less digits than its factorization.

146985055780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20819775 (or 20819773 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 58.

The spelling of 146985055780 in words is "one hundred forty-six billion, nine hundred eighty-five million, fifty-five thousand, seven hundred eighty".