156540461505 has 16 divisors (see below), whose sum is σ = 252376686144. Its totient is φ = 82850930240.

The previous prime is 156540461503. The next prime is 156540461509. The reversal of 156540461505 is 505164045651.

It is not a de Polignac number, because 156540461505 - 2¹ = 156540461503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156540461503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39830214 + ... + 39834143.

It is an arithmetic number, because the mean of its divisors is an integer number (15773542884).

Almost surely, 2^156540461505 is an apocalyptic number.

156540461505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

156540461505 is a deficient number, since it is larger than the sum of its proper divisors (95836224639).

156540461505 is a wasteful number, since it uses less digits than its factorization.

156540461505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79664496.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 156540461505 in words is "one hundred fifty-six billion, five hundred forty million, four hundred sixty-one thousand, five hundred five".