45155032402 has 4 divisors (see below), whose sum is σ = 67732548606. Its totient is φ = 22577516200.

The previous prime is 45155032387. The next prime is 45155032451. The reversal of 45155032402 is 20423055154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44592346561 + 562685841 = 211169^2 + 23721^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11288758099 + ... + 11288758102.

Almost surely, 2^45155032402 is an apocalyptic number.

45155032402 is a deficient number, since it is larger than the sum of its proper divisors (22577516204).

45155032402 is a wasteful number, since it uses less digits than its factorization.

45155032402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22577516203.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 45155032402 its reverse (20423055154), we get a palindrome (65578087556).

The spelling of 45155032402 in words is "forty-five billion, one hundred fifty-five million, thirty-two thousand, four hundred two".