145133340423556 has 24 divisors (see below), whose sum is σ = 258779102047704. Its totient is φ = 71196492407040.

The previous prime is 145133340423553. The next prime is 145133340423569. The reversal of 145133340423556 is 655324043331541.

It can be written as a sum of positive squares in 4 ways, for example, as 32440041619456 + 112693298804100 = 5695616^2 + 10615710^2 .

It is not an unprimeable number, because it can be changed into a prime (145133340423553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10530186 + ... + 20028766.

It is an arithmetic number, because the mean of its divisors is an integer number (10782462585321).

Almost surely, 2^{145133340423556} is an apocalyptic number.

It is an amenable number.

145133340423556 is a deficient number, since it is larger than the sum of its proper divisors (113645761624148).

145133340423556 is a wasteful number, since it uses less digits than its factorization.

145133340423556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9570711 (or 9570709 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 49.

The spelling of 145133340423556 in words is "one hundred forty-five trillion, one hundred thirty-three billion, three hundred forty million, four hundred twenty-three thousand, five hundred fifty-six".