142016436561 has 32 divisors (see below), whose sum is σ = 206077132800. Its totient is φ = 86645470464.

The previous prime is 142016436517. The next prime is 142016436659. The reversal of 142016436561 is 165634610241.

It is not a de Polignac number, because 142016436561 - 2¹⁰ = 142016435537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142016436511) 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, 343840 + ... + 634238.

It is an arithmetic number, because the mean of its divisors is an integer number (6439910400).

Almost surely, 2^142016436561 is an apocalyptic number.

It is an amenable number.

142016436561 is a deficient number, since it is larger than the sum of its proper divisors (64060696239).

142016436561 is a wasteful number, since it uses less digits than its factorization.

142016436561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290685.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 142016436561 in words is "one hundred forty-two billion, sixteen million, four hundred thirty-six thousand, five hundred sixty-one".