145677816556 has 6 divisors (see below), whose sum is σ = 254936178980. Its totient is φ = 72838908276.

The previous prime is 145677816551. The next prime is 145677816563. The reversal of 145677816556 is 655618776541.

It is a super-2 number, since 2×145677816556² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145677816494 and 145677816503.

It is not an unprimeable number, because it can be changed into a prime (145677816551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18209727066 + ... + 18209727073.

Almost surely, 2^145677816556 is an apocalyptic number.

It is an amenable number.

145677816556 is a deficient number, since it is larger than the sum of its proper divisors (109258362424).

145677816556 is a wasteful number, since it uses less digits than its factorization.

145677816556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36419454143 (or 36419454141 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 61.

The spelling of 145677816556 in words is "one hundred forty-five billion, six hundred seventy-seven million, eight hundred sixteen thousand, five hundred fifty-six".