1551050000001 has 6 divisors (see below), whose sum is σ = 2240405555570. Its totient is φ = 1034033333328.

The previous prime is 1551049999957. The next prime is 1551050000033. The reversal of 1551050000001 is 1000000501551.

1551050000001 is a `hidden beast` number, since 155 + 10 + 500 + 0 + 0 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1426116028401 + 124933971600 = 1194201^2 + 353460^2 .

It is not a de Polignac number, because 1551050000001 - 2¹⁹ = 1551049475713 is a prime.

It is a super-2 number, since 2×1551050000001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1551050000701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86169444436 + ... + 86169444453.

Almost surely, 2^{1551050000001} is an apocalyptic number.

It is an amenable number.

1551050000001 is a deficient number, since it is larger than the sum of its proper divisors (689355555569).

1551050000001 is a wasteful number, since it uses less digits than its factorization.

1551050000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172338888895 (or 172338888892 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

Adding to 1551050000001 its reverse (1000000501551), we get a palindrome (2551050501552).

The spelling of 1551050000001 in words is "one trillion, five hundred fifty-one billion, fifty million, one", and thus it is an aban number.