145212755766020 has 48 divisors (see below), whose sum is σ = 310702199210928. Its totient is φ = 56988845322240.

The previous prime is 145212755765993. The next prime is 145212755766047. The reversal of 145212755766020 is 20667557212541.

It is an interprime number because it is at equal distance from previous prime (145212755765993) and next prime (145212755766047).

It can be written as a sum of positive squares in 8 ways, for example, as 6793154151424 + 138419601614596 = 2606368^2 + 11765186^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335737100 + ... + 336169340.

It is an arithmetic number, because the mean of its divisors is an integer number (6472962483561).

Almost surely, 2^{145212755766020} is an apocalyptic number.

145212755766020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145212755766020 is an abundant number, since it is smaller than the sum of its proper divisors (165489443444908).

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

145212755766020 is a wasteful number, since it uses less digits than its factorization.

145212755766020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749240 (or 749238 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 53.

The spelling of 145212755766020 in words is "one hundred forty-five trillion, two hundred twelve billion, seven hundred fifty-five million, seven hundred sixty-six thousand, twenty".