145457772551 has 12 divisors (see below), whose sum is σ = 180008605872. Its totient is φ = 115087467456.

The previous prime is 145457772547. The next prime is 145457772583. The reversal of 145457772551 is 155277754541.

It is not a de Polignac number, because 145457772551 - 2² = 145457772547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145457772493 and 145457772502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145457772521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61477166 + ... + 61479531.

It is an arithmetic number, because the mean of its divisors is an integer number (15000717156).

Almost surely, 2^145457772551 is an apocalyptic number.

145457772551 is a deficient number, since it is larger than the sum of its proper divisors (34550833321).

145457772551 is a wasteful number, since it uses less digits than its factorization.

145457772551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122956730 (or 122956717 counting only the distinct ones).

The product of its digits is 6860000, while the sum is 53.

The spelling of 145457772551 in words is "one hundred forty-five billion, four hundred fifty-seven million, seven hundred seventy-two thousand, five hundred fifty-one".