1611001478 has 8 divisors (see below), whose sum is σ = 2416695480. Its totient is φ = 805436320.

The previous prime is 1611001471. The next prime is 1611001487. The reversal of 1611001478 is 8741001161.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1611001478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611001471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10238 + ... + 57678.

It is an arithmetic number, because the mean of its divisors is an integer number (302086935).

Almost surely, 2^1611001478 is an apocalyptic number.

1611001478 is a deficient number, since it is larger than the sum of its proper divisors (805694002).

1611001478 is a wasteful number, since it uses less digits than its factorization.

1611001478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64422.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 1611001478 is about 40137.2828925925. The cubic root of 1611001478 is about 1172.2816842647.

The spelling of 1611001478 in words is "one billion, six hundred eleven million, one thousand, four hundred seventy-eight".