742165151515 has 4 divisors (see below), whose sum is σ = 890598181824. Its totient is φ = 593732121208.

The previous prime is 742165151443. The next prime is 742165151561. The reversal of 742165151515 is 515151561247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 742165151515 - 2¹⁹ = 742164627227 is a prime.

It is a super-2 number, since 2×742165151515² (a number of 25 digits) contains 22 as substring.

It is a Duffinian 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, 74216515147 + ... + 74216515156.

It is an arithmetic number, because the mean of its divisors is an integer number (222649545456).

Almost surely, 2^742165151515 is an apocalyptic number.

742165151515 is a deficient number, since it is larger than the sum of its proper divisors (148433030309).

742165151515 is a wasteful number, since it uses less digits than its factorization.

742165151515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148433030308.

The product of its digits is 210000, while the sum is 43.

The spelling of 742165151515 in words is "seven hundred forty-two billion, one hundred sixty-five million, one hundred fifty-one thousand, five hundred fifteen".