161502630734 has 16 divisors (see below), whose sum is σ = 242545881600. Its totient is φ = 80654065464.

The previous prime is 161502630727. The next prime is 161502630739. The reversal of 161502630734 is 437036205161.

161502630734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161502630734² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161502630739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5850737 + ... + 5878275.

It is an arithmetic number, because the mean of its divisors is an integer number (15159117600).

Almost surely, 2^161502630734 is an apocalyptic number.

161502630734 is a deficient number, since it is larger than the sum of its proper divisors (81043250866).

161502630734 is a wasteful number, since it uses less digits than its factorization.

161502630734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30967.

The product of its (nonzero) digits is 90720, while the sum is 38.

Adding to 161502630734 its reverse (437036205161), we get a palindrome (598538835895).

The spelling of 161502630734 in words is "one hundred sixty-one billion, five hundred two million, six hundred thirty thousand, seven hundred thirty-four".