1553451656101 has 8 divisors (see below), whose sum is σ = 1638201699680. Its totient is φ = 1469000555568.

The previous prime is 1553451656089. The next prime is 1553451656147. The reversal of 1553451656101 is 1016561543551.

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

It is a cyclic number.

It is not a de Polignac number, because 1553451656101 - 2⁵ = 1553451656069 is a prime.

It is a super-3 number, since 3×1553451656101³ (a number of 38 digits) contains 333 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 (1553451656191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74725086 + ... + 74745871.

It is an arithmetic number, because the mean of its divisors is an integer number (204775212460).

Almost surely, 2^{1553451656101} is an apocalyptic number.

It is an amenable number.

1553451656101 is a deficient number, since it is larger than the sum of its proper divisors (84750043579).

1553451656101 is a wasteful number, since it uses less digits than its factorization.

1553451656101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149471523.

The product of its (nonzero) digits is 270000, while the sum is 43.

The spelling of 1553451656101 in words is "one trillion, five hundred fifty-three billion, four hundred fifty-one million, six hundred fifty-six thousand, one hundred one".