65494142499 has 16 divisors (see below), whose sum is σ = 93241412352. Its totient is φ = 40793114208.

The previous prime is 65494142479. The next prime is 65494142501. The reversal of 65494142499 is 99424149456.

It is not a de Polignac number, because 65494142499 - 2⁹ = 65494141987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65494142419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11034132 + ... + 11040065.

It is an arithmetic number, because the mean of its divisors is an integer number (5827588272).

Almost surely, 2^65494142499 is an apocalyptic number.

65494142499 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

65494142499 is a deficient number, since it is larger than the sum of its proper divisors (27747269853).

65494142499 is a wasteful number, since it uses less digits than its factorization.

65494142499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22074266.

The product of its digits is 11197440, while the sum is 57.

The spelling of 65494142499 in words is "sixty-five billion, four hundred ninety-four million, one hundred forty-two thousand, four hundred ninety-nine".