101661600151 has 4 divisors (see below), whose sum is σ = 105167172600. Its totient is φ = 98156027704.

The previous prime is 101661600121. The next prime is 101661600169. The reversal of 101661600151 is 151006166101.

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 101661600151 - 2¹⁹ = 101661075863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101661600121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752786181 + ... + 1752786238.

It is an arithmetic number, because the mean of its divisors is an integer number (26291793150).

Almost surely, 2^101661600151 is an apocalyptic number.

101661600151 is a deficient number, since it is larger than the sum of its proper divisors (3505572449).

101661600151 is an equidigital number, since it uses as much as digits as its factorization.

101661600151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505572448.

The product of its (nonzero) digits is 1080, while the sum is 28.

Adding to 101661600151 its reverse (151006166101), we get a palindrome (252667766252).

The spelling of 101661600151 in words is "one hundred one billion, six hundred sixty-one million, six hundred thousand, one hundred fifty-one".