140015818065 has 32 divisors (see below), whose sum is σ = 227134558080. Its totient is φ = 73639051776.

The previous prime is 140015818057. The next prime is 140015818069. The reversal of 140015818065 is 560818510041.

It is not a de Polignac number, because 140015818065 - 2³ = 140015818057 is a prime.

It is a super-2 number, since 2×140015818065² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140015818069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11089326 + ... + 11101944.

It is an arithmetic number, because the mean of its divisors is an integer number (7097954940).

Almost surely, 2^140015818065 is an apocalyptic number.

140015818065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140015818065 is a deficient number, since it is larger than the sum of its proper divisors (87118740015).

140015818065 is a wasteful number, since it uses less digits than its factorization.

140015818065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22833.

The product of its (nonzero) digits is 38400, while the sum is 39.

The spelling of 140015818065 in words is "one hundred forty billion, fifteen million, eight hundred eighteen thousand, sixty-five".