161663037410102 has 16 divisors (see below), whose sum is σ = 243907508395824. Its totient is φ = 80360802756000.

The previous prime is 161663037410059. The next prime is 161663037410159. The reversal of 161663037410102 is 201014730366161.

It is a super-2 number, since 2×161663037410102² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161663037410102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65828549 + ... + 68240192.

It is an arithmetic number, because the mean of its divisors is an integer number (15244219274739).

Almost surely, 2^{161663037410102} is an apocalyptic number.

161663037410102 is a deficient number, since it is larger than the sum of its proper divisors (82244470985722).

161663037410102 is a wasteful number, since it uses less digits than its factorization.

161663037410102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134072255.

The product of its (nonzero) digits is 108864, while the sum is 41.

Adding to 161663037410102 its reverse (201014730366161), we get a palindrome (362677767776263).

The spelling of 161663037410102 in words is "one hundred sixty-one trillion, six hundred sixty-three billion, thirty-seven million, four hundred ten thousand, one hundred two".