1001551104 has 216 divisors, whose sum is σ = 3080226240. Its totient is φ = 312090624.

The previous prime is 1001551097. The next prime is 1001551147. The reversal of 1001551104 is 4011551001.

It is a happy number.

1001551104 is a `hidden beast` number, since 10 + 0 + 1 + 551 + 104 = 666.

It is a super-2 number, since 2×1001551104² = 2006209227847237632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5997229 + ... + 5997395.

Almost surely, 2^1001551104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001551104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1540113120).

1001551104 is an abundant number, since it is smaller than the sum of its proper divisors (2078675136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001551104 is a wasteful number, since it uses less digits than its factorization.

1001551104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1001551104 is about 31647.2922064432. The cubic root of 1001551104 is about 1000.5167675719.

The spelling of 1001551104 in words is "one billion, one million, five hundred fifty-one thousand, one hundred four".