161003962539 has 192 divisors, whose sum is σ = 286171591680. Its totient is φ = 85330713600.

The previous prime is 161003962529. The next prime is 161003962549. The reversal of 161003962539 is 935269300161.

161003962539 is a `hidden beast` number, since 1 + 6 + 1 + 0 + 0 + 396 + 253 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (161003962529) and next prime (161003962549).

It is not a de Polignac number, because 161003962539 - 2¹⁵ = 161003929771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161003962494 and 161003962503.

It is not an unprimeable number, because it can be changed into a prime (161003962519) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 930658657 + ... + 930658829.

It is an arithmetic number, because the mean of its divisors is an integer number (1490477040).

Almost surely, 2^161003962539 is an apocalyptic number.

161003962539 is a deficient number, since it is larger than the sum of its proper divisors (125167629141).

161003962539 is a wasteful number, since it uses less digits than its factorization.

161003962539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 161003962539 in words is "one hundred sixty-one billion, three million, nine hundred sixty-two thousand, five hundred thirty-nine".