158405805646 has 16 divisors (see below), whose sum is σ = 263458838448. Its totient is φ = 70822267200.

The previous prime is 158405805631. The next prime is 158405805653. The reversal of 158405805646 is 646508504851.

It is a junction number, because it is equal to n+sod(n) for n = 158405805593 and 158405805602.

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, 59017215 + ... + 59019898.

It is an arithmetic number, because the mean of its divisors is an integer number (16466177403).

Almost surely, 2^158405805646 is an apocalyptic number.

158405805646 is a deficient number, since it is larger than the sum of its proper divisors (105053032802).

158405805646 is a wasteful number, since it uses less digits than its factorization.

158405805646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118037187.

The product of its (nonzero) digits is 4608000, while the sum is 52.

The spelling of 158405805646 in words is "one hundred fifty-eight billion, four hundred five million, eight hundred five thousand, six hundred forty-six".