122615620545 has 32 divisors (see below), whose sum is σ = 216139031424. Its totient is φ = 58861376000.

The previous prime is 122615620511. The next prime is 122615620559. The reversal of 122615620545 is 545026516221.

It is not a de Polignac number, because 122615620545 - 2⁸ = 122615620289 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3662172 + ... + 3695501.

It is an arithmetic number, because the mean of its divisors is an integer number (6754344732).

Almost surely, 2^122615620545 is an apocalyptic number.

122615620545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122615620545 is a deficient number, since it is larger than the sum of its proper divisors (93523410879).

122615620545 is a wasteful number, since it uses less digits than its factorization.

122615620545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357793.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 122615620545 in words is "one hundred twenty-two billion, six hundred fifteen million, six hundred twenty thousand, five hundred forty-five".