161502040435 has 16 divisors (see below), whose sum is σ = 202241759040. Its totient is φ = 123576154240.

The previous prime is 161502040417. The next prime is 161502040463. The reversal of 161502040435 is 534040205161.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-161502040435 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161502040397 and 161502040406.

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, 2225301 + ... + 2296729.

It is an arithmetic number, because the mean of its divisors is an integer number (12640109940).

Almost surely, 2^161502040435 is an apocalyptic number.

161502040435 is a deficient number, since it is larger than the sum of its proper divisors (40739718605).

161502040435 is a wasteful number, since it uses less digits than its factorization.

161502040435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91118.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 161502040435 its reverse (534040205161), we get a palindrome (695542245596).

The spelling of 161502040435 in words is "one hundred sixty-one billion, five hundred two million, forty thousand, four hundred thirty-five".