163451143510442 has 32 divisors (see below), whose sum is σ = 249836445157824. Its totient is φ = 80182159200000.

The previous prime is 163451143510399. The next prime is 163451143510453. The reversal of 163451143510442 is 244015341154361.

It is a happy number.

163451143510442 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 2×163451143510442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163451143510393 and 163451143510402.

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, 1164103442 + ... + 1164243842.

It is an arithmetic number, because the mean of its divisors is an integer number (7807388911182).

Almost surely, 2^{163451143510442} is an apocalyptic number.

163451143510442 is a deficient number, since it is larger than the sum of its proper divisors (86385301647382).

163451143510442 is a wasteful number, since it uses less digits than its factorization.

163451143510442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175334.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 163451143510442 in words is "one hundred sixty-three trillion, four hundred fifty-one billion, one hundred forty-three million, five hundred ten thousand, four hundred forty-two".