145216807620 has 24 divisors (see below), whose sum is σ = 406607061504. Its totient is φ = 38724482016.

The previous prime is 145216807609. The next prime is 145216807633. The reversal of 145216807620 is 26708612541.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1210140004 + ... + 1210140123.

It is an arithmetic number, because the mean of its divisors is an integer number (16941960896).

Almost surely, 2^145216807620 is an apocalyptic number.

145216807620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145216807620 is an abundant number, since it is smaller than the sum of its proper divisors (261390253884).

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

145216807620 is a wasteful number, since it uses less digits than its factorization.

145216807620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420280139 (or 2420280137 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 145216807620 in words is "one hundred forty-five billion, two hundred sixteen million, eight hundred seven thousand, six hundred twenty".