145412556566 has 32 divisors (see below), whose sum is σ = 236504188800. Its totient is φ = 66786039936.

The previous prime is 145412556559. The next prime is 145412556599. The reversal of 145412556566 is 665655214541.

It is a super-2 number, since 2×145412556566² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 1872785 + ... + 1948883.

It is an arithmetic number, because the mean of its divisors is an integer number (7390755900).

Almost surely, 2^145412556566 is an apocalyptic number.

145412556566 is a deficient number, since it is larger than the sum of its proper divisors (91091632234).

145412556566 is a wasteful number, since it uses less digits than its factorization.

145412556566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77468.

The product of its digits is 4320000, while the sum is 50.

The spelling of 145412556566 in words is "one hundred forty-five billion, four hundred twelve million, five hundred fifty-six thousand, five hundred sixty-six".