161436404412422 has 8 divisors (see below), whose sum is σ = 246723561460656. Its totient is φ = 79195217258872.

The previous prime is 161436404412313. The next prime is 161436404412427. The reversal of 161436404412422 is 224214404634161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×161436404412422² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161436404412427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761492473538 + ... + 761492473749.

It is an arithmetic number, because the mean of its divisors is an integer number (30840445182582).

Almost surely, 2^{161436404412422} is an apocalyptic number.

161436404412422 is a deficient number, since it is larger than the sum of its proper divisors (85287157048234).

161436404412422 is a wasteful number, since it uses less digits than its factorization.

161436404412422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522984947342.

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 161436404412422 in words is "one hundred sixty-one trillion, four hundred thirty-six billion, four hundred four million, four hundred twelve thousand, four hundred twenty-two".