157724924405542 has 32 divisors (see below), whose sum is σ = 268201240876800. Its totient is φ = 68963455181088.

The previous prime is 157724924405519. The next prime is 157724924405549. The reversal of 157724924405542 is 245504429427751.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157724924405549) 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, 23712559 + ... + 29626597.

It is an arithmetic number, because the mean of its divisors is an integer number (8381288777400).

Almost surely, 2^{157724924405542} is an apocalyptic number.

157724924405542 is a deficient number, since it is larger than the sum of its proper divisors (110476316471258).

157724924405542 is a wasteful number, since it uses less digits than its factorization.

157724924405542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968060.

The product of its (nonzero) digits is 112896000, while the sum is 61.

The spelling of 157724924405542 in words is "one hundred fifty-seven trillion, seven hundred twenty-four billion, nine hundred twenty-four million, four hundred five thousand, five hundred forty-two".