42161651542 has 8 divisors (see below), whose sum is σ = 63250958016. Its totient is φ = 21077998872.

The previous prime is 42161651531. The next prime is 42161651551. The reversal of 42161651542 is 24515616124.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394758 + ... + 1424665.

It is an arithmetic number, because the mean of its divisors is an integer number (7906369752).

Almost surely, 2^42161651542 is an apocalyptic number.

42161651542 is a deficient number, since it is larger than the sum of its proper divisors (21089306474).

42161651542 is a wasteful number, since it uses less digits than its factorization.

42161651542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826902.

The product of its digits is 57600, while the sum is 37.

The spelling of 42161651542 in words is "forty-two billion, one hundred sixty-one million, six hundred fifty-one thousand, five hundred forty-two".