101402215303661 has 16 divisors (see below), whose sum is σ = 108633377992320. Its totient is φ = 94312939860480.

The previous prime is 101402215303573. The next prime is 101402215303673. The reversal of 101402215303661 is 166303512204101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101402215303661 is a prime.

It is a super-2 number, since 2×101402215303661² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101402215303561) 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, 15763721 + ... + 21243806.

It is an arithmetic number, because the mean of its divisors is an integer number (6789586124520).

Almost surely, 2^{101402215303661} is an apocalyptic number.

It is an amenable number.

101402215303661 is a deficient number, since it is larger than the sum of its proper divisors (7231162688659).

101402215303661 is a wasteful number, since it uses less digits than its factorization.

101402215303661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37009444.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 101402215303661 its reverse (166303512204101), we get a palindrome (267705727507762).

The spelling of 101402215303661 in words is "one hundred one trillion, four hundred two billion, two hundred fifteen million, three hundred three thousand, six hundred sixty-one".