133545544615642 has 8 divisors (see below), whose sum is σ = 205732325489076. Its totient is φ = 64968102785952.

The previous prime is 133545544615601. The next prime is 133545544615649. The reversal of 133545544615642 is 246516445545331.

It can be written as a sum of positive squares in 2 ways, for example, as 133405295114641 + 140249501001 = 11550121^2 + 374499^2 .

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

It is a super-2 number, since 2×133545544615642² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133545544615649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902334760843 + ... + 902334760990.

Almost surely, 2^{133545544615642} is an apocalyptic number.

133545544615642 is a deficient number, since it is larger than the sum of its proper divisors (72186780873434).

133545544615642 is a wasteful number, since it uses less digits than its factorization.

133545544615642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804669521872.

The product of its digits is 103680000, while the sum is 58.

The spelling of 133545544615642 in words is "one hundred thirty-three trillion, five hundred forty-five billion, five hundred forty-four million, six hundred fifteen thousand, six hundred forty-two".